As of previous close (2026-10-02) · OPRA historical data
Spot $231.27 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
1.47
38k P / 26k C
Put/Call (Volume)
1.22
1k P / 1k C that session
30d ATM IV
40%
annualized implied move
Call wall
$250
2k contracts
Put wall
$220
10k contracts
Tail hedging
0.6×
deep-OTM puts vs calls
All expiries combined. Amber lines mark the call and put walls; the dashed line is spot.
At-the-money implied volatility per expiry.
IV by strike — expiry 2026-10-30. A steep left side = expensive downside protection.
Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.
| Expiry | Call OI | Put OI | P/C | Volume that session |
|---|---|---|---|---|
| 2026-10-09 | 750 | 624 | 0.83 | 409 |
| 2026-10-16 | 5k | 15k | 2.86 | 572 |
| 2026-10-23 | 957 | 5k | 5.31 | 99 |
| 2026-10-30 | 511 | 352 | 0.69 | 102 |
| 2026-11-06 | 43 | 22 | 0.51 | 210 |
| 2026-11-13 | 3 | 0 | 0.00 | 2 |
| 2026-11-20 | 683 | 3k | 4.33 | 426 |
| 2026-12-18 | 3k | 5k | 1.48 | 49 |
| 2027-01-15 | 6k | 4k | 0.63 | 110 |
| 2027-03-19 | 1k | 2k | 1.11 | 31 |
| 2027-04-16 | 173 | 70 | 0.40 | 9 |
| 2027-06-17 | 760 | 249 | 0.33 | 53 |
| 2027-09-17 | 420 | 115 | 0.27 | 2 |
| 2028-01-21 | 3k | 2k | 0.66 | 42 |
| 2029-01-19 | 102 | 84 | 0.82 | 9 |
Source: Cboe end-of-session option chains, summarized after each US market close and published from the following trading day — OPRA historical data. Under the OPRA plan options data becomes historical, and freely publishable, at the opening of the next trading session; data from the session in progress is never displayed or served here. Open interest is exchange-reported once a day. Research, not investment advice.